René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What is the difference between == and === in JavaScript?","acceptedAnswer":{"@type":"Answer","text":"== (loose equality) performs type coercion before comparing, so \"5\" == 5 is true. === (strict equality) compares both value and type without coercion, so \"5\" === 5 is false. Always prefer === to avoid unexpected behavior."}},{"@type":"Question","name":"What does the ?? operator do in JavaScript?","acceptedAnswer":{"@type":"Answer","text":"The nullish coalescing operator (??) returns the right-hand operand when the left is null or undefined, otherwise returns the left. Unlike ||, it does not treat 0, \"\", or false as nullish values."}},{"@type":"Question","name":"How does the ternary operator work?","acceptedAnswer":{"@type":"Answer","text":"The ternary operator (condition ? valueIfTrue : valueIfFalse) is a shorthand for if-else. It evaluates the condition and returns the first value if true, or the second if false."}},{"@type":"Question","name":"What is short-circuit evaluation in JavaScript?","acceptedAnswer":{"@type":"Answer","text":"Short-circuit evaluation means && and || stop evaluating as soon as the result is determined. && returns the first falsy value or the last value. || returns the first truthy value or the last value."}}]}